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Finding the Fourth Proportional to 8,195.77, 11,310.20 and 4,659.72

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Solution

The fourth proportional to 8,195.77, 11,310.20 and 4,659.72 is: 6,430.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,195.77 : 11,310.20 = 4,659.72 : x
  2. Step 2: Convert to fraction form
    8,195.77/11,310.20 = 4,659.72/x
  3. Step 3: Cross multiply
    8,195.77x = 11,310.20 × 4,659.72
  4. Step 4: Simplify right side
    8,195.77x = 52,702,365.14
  5. Step 5: Solve for x
    x = 52,702,365.14/8,195.77
  6. Step 6: Final answer
    x = 6,430.43

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.